Cook the brisket: Season the brisket with salt and pepper. Heat oil in a large skillet over medium-high heat. Add the brisket, brown on all sides, and transfer to a slow cooker.

Add the remaining ingredients to the slow cooker and stir well. Slow-cook, covered, until the meat is very tender -- 8 hours. Remove the meat, place it on a cutting board, and let it rest for 15 minutes. Reserve the sauce.

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